| Uncaria gambir | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae | 
| (unranked): | Angiosperms | 
| (unranked): | Eudicots | 
| (unranked): | Asterids | 
| Order: | Gentianales | 
| Family: | Rubiaceae | 
| Genus: | Uncaria | 
| Species: | U. gambir | 
| Binomial name | |
| 
Uncaria gambir (W.Hunter) Roxb., 1824  | 
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| Synonyms | |
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Uncaria gambir, the gambier or gambir, is a species in the genus Uncaria found in Southeast Asia, mainly Malaysia and Indonesia.
Gambier extract is used or has been used as a catechu for chewing with areca and betel, for tanning and dyeing, and as herbal medicine.